What is PDF?
A fixed-layout document format that preserves pages, typography, and graphics.
Technical details
PDF files have a catalog and page tree referencing page contents, fonts, images, annotations, and resources; cross-reference data locates objects. [1]
Background and compatibility
The Library of Congress traces PDF to Adobe's page-description model and documents its use for fixed-layout exchange and printing. [1]
Sources and references
- PDF File Format DescriptionLibrary of Congress
Preview on your device
Page-by-page rendering with zoomed detail in the expanded preview.
Conversion support
Choose a file in the workspace to see the available output formats and options. A supported container may still contain an unsupported codec.
Read the format reference on Wikipedia ↗